Top fitting for a deionizer tank



FIG. 1 is a perspective view of a top fitting for a deionizer tank showing my new design, on a reduced scale;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is the other side elevational view thereof;

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a top fitting for a deionizer tank, as shown and described. 